[Mattia] decided that a spare key card might be good to have around, and that building it into his Casio F-91W watch would put the key as close at hand as it could be without getting an implant.

[Matteo] has been a fan of the Casio F-91W wristwatch virtually since its release in 1989. And not without good reason, either. The watch boasts reliable timekeeping and extremely long battery ...

Certain watches can stay just as they are and people will keep buying them. The Casio F-91W, one of the continuously best-selling watches in the world, keeps the time on a readable display and ...

Take 1984’s Casio Data Bank CD-40, a digital watch, one of the earliest to include a databank for storing contacts, phone numbers and information. Or 1989’s Casio F-91W, renowned for its reliability, ...